| 摘要 |
<p>The irrigation disc with fertiliser cartridge consists of two parts, namely a rot-resistant synthetic felt and a replaceable fertiliser cartridge. Automatic long-term irrigation is effected, on the one hand, by the absorbent felt, and long-term fertilisation is provided, on the other hand, by the fertiliser contained in the cartridge. While the fertiliser cartridge should be changed roughly every six months, the irrigation disc can be used for several years.</p> |
